Data processing algorithm evaluation device

Patent metadata

Field	Value
Publication number	US-2025362412-A1
Application number	US-202318873731-A
Country	US
Kind code	A1
Filing date	Jul 7, 2023
Priority date	Jul 14, 2022
Publication date	Nov 27, 2025
Grant date	—

Abstract

A data processing algorithm evaluation device includes: a data storage unit configured to store therein a plurality of pieces of optical ranging data detected from a vehicle; a data generating unit configured to acquire and interpret target data, upon receiving an input of disturbance information representing disturbance for the target data, from the plurality of pieces of optical ranging data stored in the data storage unit, and to generate composite data in which the target data is reflected with the disturbance, by editing the target data on the basis of the interpretation; and a data processing unit configured to evaluate performance of a data processing algorithm for determining situation of the vehicle, on the basis of the generated composite data.

First claim

1 . A data processing algorithm evaluation device comprising:
a data storage unit configured to store optical ranging data detected from a vehicle; a data generating unit configured to acquire and interpret target data, upon receiving an input of disturbance information representing disturbance for the target data, from the optical ranging data stored in the data storage unit, and to generate composite data in which the target data is reflected with the disturbance by editing the target data based on the interpretation; and a data processing unit configured to evaluate performance of a data processing algorithm for determining situation of the vehicle, based on the generated composite data.

2 . The data processing algorithm evaluation device according to claim 1 , wherein the data generating unit is configured to acquire a distance of an object included in the target data with respect to a detection position of the target data, to calculate a strength of disturbance having been affected by the distance based on the acquired distance, and to generate the composite data based on a result of the calculation.

3 . The data processing algorithm evaluation device according to claim 1 , wherein the optical ranging data is acquired for each of beams of measurement light emitted from the vehicle, and is a two-dimensional data arranged in a vertical direction and a horizontal direction correspondingly to directions in which the beams are emitted.

4 . The data processing algorithm evaluation device according to claim 3 , wherein the optical ranging data includes distance data indicating a distance to the object, and intensity data indicating an intensity of the measurement light reflected from the object.

5 . The data processing algorithm evaluation device according to claim 3 , further comprising:
a learning data storage unit configured to store reference data that is the optical ranging data not including disturbance, and disturbance data that is the optical ranging data including disturbance, as learning data; and a data learning unit configured to generate learning composite data based on the reference data and the disturbance information, following a process identical to a process by which the data generating unit generates the composite data based on the target data and the disturbance information, and to perform learning using a generative adversarial network or a cycle generative adversarial network so that accuracy of the learning composite data with respect to the disturbance data is improved, wherein the data generating unit is configured to interpret the target data and to generate the composite data based on a learning result of the data learning unit.

6 . The data processing algorithm evaluation device according to claim 5 , wherein
the learning data storage unit is configured to store a plurality of pieces of disturbance data including same type of disturbance by different degrees, the data learning unit is configured to perform learning based on the plurality pf pieces of disturbance data including the disturbance by different degrees, and the data generating unit is configured to interpret the target data, upon receiving the disturbance information including a degree of the disturbance, based on the learning result of the data learning unit, and to generate the composite data in a manner reflecting the disturbance to the target data by the degree corresponding to the disturbance information.

7 . The data processing algorithm evaluation device according to claim 5 , wherein
the learning data storage unit is configured to store therein the plurality of pieces of optical ranging data each piece of which includes a different attribute, in a manner mapped with label information indicating the attribute, the data learning unit is configured to perform learning using the cycle generative adversarial network so that accuracy related to the attribute of the generated learning composite data with respect to the disturbance data is improved, the data generating unit is configured to extract, upon receiving inputs of the target data and the disturbance information, label information indicating the attribute of the target data, to interpret the target data and to generate the composite data based on the learning result of the data learning unit.

8 . The data processing algorithm evaluation device according to claim 5 , wherein the data learning unit is configured to, when the generative adversarial network or the cycle generative adversarial network is used, use number of the beams in the vertical direction in the optical ranging data as a reference in convolution processing.

9 . The data processing algorithm evaluation device according to claim 5 , wherein the data learning unit is configured, when the generative adversarial network or the cycle generative adversarial network is used, to perform skip connection processing.

10 . The data processing algorithm evaluation device according to claim 5 , wherein the optical ranging data includes distance data indicating a distance to the object, and intensity data indicating an intensity of the measurement light reflected from the object, and at least one of a value of the distance and a value of the intensity is normalized so that the value of the distance and the value of the intensity are in a corresponding relation.

Assignees

• Mitsubishi Heavy Ind Mach Systems Ltd
• Univ Tokyo

Inventors

• Shimizu Hirokazu
• Nishimori Toshiaki
• Nakao Kenta
• Kamijo Shunsuke
• Lee Jinho

Classifications

• G01S17/95

  for meteorological use · CPC title

• G01S17/42

  Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S17/46) · CPC title

• G01S17/931 Primary

  of land vehicles · CPC title

• G01S7/4808 Primary

  Evaluating distance, position or velocity data · CPC title